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323 Knickerbocker Avenue

Brooklyn, NY 11237BBL 3-03236-0005Map

Owner of record: 323 Knickerbocker Assoc, LLC

323 Knickerbocker Avenue is a mixed residential and retail building built in 1931 in Brooklyn, 11237. It has 6 residential units across 4 floors. The owner of record is 323 Knickerbocker Assoc, LLC. HPD has recorded 20 housing violations here, most recently on May 5, 2026. 2 of the 20 most recent violations are still open.

HPD violations
20
DOB violations
1
ECB violations
7
HPD complaints
19

What to know

Concern
2 open Class C

Immediately hazardous issues among recent violations are still open.

Good
Last violation May 5, 2026

Date of the most recent HPD inspection that found a problem.

Good
No unpaid ECB fines

No balance due on recent ECB violations.

Rent stabilization

No rent-stabilized units in 2018–2024 tax bills

Some apartments can still be regulated. Use the rent-stabilized checker or request the rent history from HCR.

Violations

Most recent first. Showing up to 50 per agency.

HPD housing violations · 20

  • A

    File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.

    May 5, 2026

    Closed — Violation dismissed
  • A

    File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.

    Jun 10, 2025

    Closed — Violation dismissed
  • A

    § 329, m/d law and dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor missing at public hall, 1st story

    Jan 3, 2024

    Closed — Violation dismissed
  • I

    And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.

    Nov 14, 2022

    Closed — Violation dismissed
  • A

    Post and maintain a proper notice on wall of the entrance story in english and spanish on the availability of the agencys housing information guide. a sample notice can be found at www.nyc.gov/hpd. at public hall, 1st story

    Jun 15, 2022

    Closed — Violation dismissed
  • B

    Provide heavy duty locking device on door at building entrance

    Jun 15, 2022

    Closed — Violation dismissed
  • B

    M/d law abate the nuisance consisting of electromagnetic locking device install on door at building entrance

    Jun 15, 2022

    Closed — Violation dismissed
  • A

    Post, in a form approved by the commissioner, and maintain a notice in a common area of the building regarding the procedures that should be followed when a gas leak is suspected

    Jun 15, 2022

    Closed — Violation dismissed
  • A

    Post and maintain a proper sign on wall of entrance story showing the registration number assigned by the department and the address of the building. at public hall, 1st story

    Jun 15, 2022

    Closed — Violation dismissed
  • A

    § 329, m/d law and dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor at public hall, 1st story

    Jun 15, 2022

    Closed — Violation dismissed
Show 10 more ↓
  • A

    Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the mail box at public hall, 1st story

    Jun 15, 2022

    Closed — Violation dismissed
  • A

    Post a proper notice of carbon monoxide detecting device requirements, in a form approved by the commissioner, in a common area of a class a multiple dwelling near inspection certificate or provide notice to tenants in a private dwelling.

    Jun 15, 2022

    Closed — Violation dismissed
  • A

    File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.

    Feb 25, 2022

    Closed — Violation dismissed
  • A

    File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.

    Apr 9, 2021

    Closed — Violation dismissed
  • I

    And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.

    Oct 9, 2015

    Closed — Violation dismissed
  • C

    Remove the illegal fastening unacceptable electromagnetic locking device installed at entrance door to building

    Oct 3, 2011

    Open — Not complied with
  • B

    Replace or repair the self-closing doors that is missing or defective at entrance to building at public hall, 1st story

    Oct 3, 2011

    Closed — Violation closed
  • C

    Post notice, in form approved by the department, stating the name and location of the person designated by the owner to have key to buildings heating system at 1st story public hall

    Jun 26, 2008

    Open — Not complied with
  • C

    Provide ready access to buildings heating system at boiler room in bsmt

    Jun 26, 2008

    Closed — Violation closed
  • A

    File with this department a registration statement for building.

    Nov 6, 1996

    Closed — Violation dismissed

DOB building violations · 1

  • Construction other optional

    Borough commissioner has ordered all work stopped under permit# 321569101 on 8/30/2018 because the applicant of record has withdrawn from the project. unable to verify % of work completed remedy:stop all work immediately make site safe only. contact borough comm office at 718-802-3677 for information

    Sep 6, 2018

    Dob violation - dismissed

ECB violations · 7

  • Class - 2

    Failure to maintain the building and all parts thereof in a code-compliant manner. at the time of inspection, i observed missing and protruding mortar on the parapet wall masonry bricks. the condition poses a p

    Oct 22, 2025 · Penalty $625

    Resolve
  • Class - 2

    Observed at above premises in cellar no electrical permit for boiler use. all prior applications not applicable to this scope of work, obtain all permits

    Feb 21, 2024 · Penalty $1,250

    Resolve
  • Hazardous

    Failure to mantain defect noted (1)combustible debris at rear yrd garbage wood card board & various other debris. remedy:make all repairs make safe

    May 26, 2004 · Penalty $800

    Resolve
  • Hazardous

    Work without a permit work noted (1)1st floor store removed stair to vacant apt above closed entry to egress from 2nd 4th floors (2)new store front with roll up gates at front & rear of premise remedy:remove il

    May 26, 2004 · Penalty $800

    Resolve
  • Hazardous

    Work without a permit. work noted: 1st floor store closed entry egressto 2nd-4th floors. new store front with roll up gates at front & rear egress entry, exits and upper floor stairs removed & sealed to 2nd &

    Oct 7, 2003 · Penalty $800

    Resolve
  • Non-hazardous

    Exit door: total obstruction. rear exit door has 4 metal slid bolts & roll up gate at rear & has total obstruction to rear exit. remedy: remove illegal slid bolts & keep exit door in open ready position.

    Oct 7, 2003 · Penalty $350

    Resolve
  • Non-hazardous

    Expose gas line in public hall, piping and or equipment installed improperly. remedy;install piping and or equipment properly.

    Jun 23, 1993

    Resolve

Complaints

  • Heat/hot water

    Apartment only

    Jan 1, 2024 · Apt 1A

    Close
  • Heat/hot water

    Apartment only

    Nov 9, 2019 · Apt 1B

    Close
  • Door/window

    Door

    Aug 31, 2015 · Apt BLDG

    Close
  • Heat/hot water

    Apartment only

    Feb 22, 2015 · Apt 1A

    Close
  • Heat/hot water

    Apartment only

    Feb 20, 2015 · Apt 1A

    Close
  • Heat/hot water

    Apartment only

    Feb 16, 2015 · Apt 1A

    Close
  • Heating

    Heat related

    Nov 19, 2011 · Apt 1A

    Close
  • General

    Locks

    Oct 31, 2011 · Apt BLDG

    Close
  • General

    Doors

    Oct 16, 2011 · Apt 2B

    Close
  • General

    Locks

    Sep 29, 2011 · Apt 2B

    Close
Show 9 more ↓
  • General

    Locks

    Sep 26, 2011 · Apt 2B

    Close
  • General

    Doors

    Sep 14, 2011 · Apt 2B

    Close
  • Heating

    Heat related

    Mar 4, 2010 · Apt 18

    Close
  • Plumbing

    Water supply

    Jan 4, 2009 · Apt 1A

    Close
  • Heating

    Heat related

    Nov 20, 2008 · Apt 1A

    Close
  • Heating

    Heat-plant

    Nov 20, 2008 · Apt 1A

    Close
  • Heating

    Heat related

    Jun 24, 2008 · Apt 3A

    Close
  • Heating

    Heat related

    Nov 1, 2007 · Apt 3E

    Close
  • Heating

    Heat related

    Nov 1, 2007 · Apt BLDG

    Close

Sales history

No recorded sales in our data

Sales come from the NYC Department of Finance rolling sales file.

Building details

Building type
Mixed residential and retail building (S5)
Year built
1931
Floors
4
Residential units
6
Building area
6,854 ft²
Lot area
2,500 ft²
Zoning
R6
Community board
304
Council district
37
Block / lot
3236 / 5
Assessed value
$558,450
Landmark / historic district
No

HPD registration #349984, last renewed Aug 21, 2025.

Questions about 323 Knickerbocker Avenue

Who owns 323 Knickerbocker Avenue?

The owner of record in NYC Department of City Planning PLUTO data is 323 Knickerbocker Assoc, LLC.

Does 323 Knickerbocker Avenue have violations?

Yes. NYC HPD has recorded 20 housing violations at this property.

Is 323 Knickerbocker Avenue rent stabilized?

No rent-stabilized units appear in its 2018–2024 tax bills. Individual apartments can still be regulated, so request the rent history from NYS Homes and Community Renewal if unsure.

When was 323 Knickerbocker Avenue built?

City records list 1931 as the year it was built.

How many apartments are in 323 Knickerbocker Avenue?

It has 6 residential units and 7 units in total.

Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.